Fastening inserting machine



y 1946. w. T. B. ROBERTS FASTENING INSERTING MACHINE Filed May 16, 1944 5 Sheets-Sheet l Inventor WY/lzdm TB Roberts y 1.94% w. T. B. ROBERTS 2,400,601

FASTENING INSER TIENG MACHINE Filed May 16, 1944 5 Sheets-Sheet 2 k Inventor VVI'Z/iamZB Faberfs B 25 Aft 0 may y 1946. w. T. B. ROBERTS I FASTENING INSERTING MACHINE Filed May 16, 1944 3 Sheets-Sheet 3 rim Patented May 21, 1946 UNITED STATES TENT OFFICE FASTENING INSERTIN G NIACHINE New Jersey Application May 16, 1944, Serial No. 535,898 In Great Britain May 19, 1943 8 Claims.

This invention relates to machines having means for inserting fastenings, and is'herein illustrated as applied to a power-operated toelasting machine of that character constructed generally as disclosed in United States Letters Patent No. 2,134,148, granted on October 25, 1938, on an application of mine. It is to be understood, however, that the invention is not thus limited in its applicability.

The machine shown in the above-mentioned Letters Patent is provided with wipers which wipe the toe end of the upper heightwise of the last and are thereafter moved lengthwise and widthwise of the last to wipe the margin of the upper inwardly over an insole on the last, and with a group of tackers which drive tacks in locations a little farther inwardly over the shoe bottom than the wiping edges of the Wipers to fasten the margin of the upper to the insole. These tackers are engaged and controlled by plates which are moved lengthwise and widthwise of the last in paths similar to the paths of movement of the wipers to impart corresponding movements to the tackers from initial retracted positions, and the tackers are also moved heightwise of the last into contact with the margin of the upper beyond the edges of the wipers prior to the tack-driving operation. The several tackers comprise nozzle members having therein driver passages in which drivers are movable to drive the tacks and having also other passages through which the tacks are fed into the driver passages from suitable tackseparating means.

While such machines have been used with highly satisfactory results, it sometimes happens, especially in operating on mens shoes having very thick, heavy uppers, that a machine fails to drive the full number of tacks. Such a shoe mayhave a toe stiffener of the kind which is softened by a solvent prior to the toe-lasting operation, and it may be provided also with an extra toecap of thick leather which it is customary to wet thoroughly with water prior to lasting. When the toe wipers wipe the margin of the upper inwardly over the insole under those conditions, some of the liquid may ooze from the upper and mix with dust on the shoe, forming more or less viscous matter some of which may adhere to the ends of the tack drivers and be carried up into the driver passages When the drivers are retracted. An accumulation of such foreign matter at the junction of some driver passage and the corresponding tack-feeding passage may eventually interfere with the feeding of tacks into the driver passage.

An object of the present invention is to avoid any failure in the feeding of tacks resulting, for example, from conditions such as above described. To this end, the machine herein shown is provided with automatic means for shaking the tackers to dislodge any tack which may have been caught at the entrance to a driver passage and also, it maybe, to dislodge any foreign matter interfering with the feeding of tacks. More particularly, the construction shown comprises continuously reciprocating means which serves thus to shake the tackers only when they are in their initial retracted positions by movements imparted to the above-mentioned tacker-controlling plates.

The invention will now be more particularly described with reference to the accompanying drawings showing an illustrative embodiment thereof and will thereafter be pointed out in the claims.

In the drawings,

Fig. l is a View in righthand side elevation of a portion of the machine in which the invention is shown as embodied;

Fig. 1a is a view similar to Fig. 1 of a portion of the structure, but with some of the parts in different positions;

Fig. 2 is a view in rear elevation of a portion of the structure shown in Fig. 1 and of other parts not therein shown I Fig. 3 is mainly a plan view showing the tackercontrolling plates and parts closely associated therewith;

Fig. 4 is mainly a vertical sectional view showing the toe end of a shoe and parts adjacent thereto prior to the operation of the wipers on the pp r;

Fig. 5 is a view similar to Fig. 4, but showing the parts as they appear at the time of the tackdriving operation; a

Fig. 6 is mainly a plan view showing the wipers and the tackers as they appear in relation to the shoe at the same time in the operation of the machine as in Fig. 5; and

Fig. '7 is mainly a vertical sectional view showing one of the tackers and associated part with the tack driver as it appears at the end of its tack -driving movement,

In accordance generally with disclosure of the previously mentioned Letters Patent, the shoe is positioned bottom upward for the toelasting operation with its forepart clamped between a holddown 2 and a toe rest 4 (Fig. 4) and with its heel end engaged by a heel rest (not herein shown) which assists in holding it against lengthwise displacement. The means for thus 7 shown in Fig '7.

bars =30 and ;the--1member 32.-

toe end of the shoe there are provided wipers 6 (Figs. 4, 5 and 6) which first wipe the upper heightwise of the-last and:.--are thereafter advanced bodilylengthwise of the shoe and closed inwardly over the shoe bottom by movements laterally of the shoe about a vertical axis "to wipe the margin of the upper over the insole. Associated with the wipers are membersfl'which spread the margin of the upper from over the insole and by clamping it on the wipersserve as retarders to insure that the upper'will be wiped tightly and smoothly over the last and the insole. After thus operating on the upperthese members are retracted lengthwise of the shoe and ,are moved downwardly to the positions in which they are shown in Fig. 5. After their first-inward wiping. movements? the wipers are preferably retracted nearly. butnot quite to the edgeiofthe .insole and are then moved inwardly'againto positions where theirwip n edges are not so far'from the edge of .the insole as at the end of their first inward movements, ready for the driving. of tacks to'fasten the upper. to the insole, as further disclosed .in United States Letters Patent 1 No. 2,140,652, granted on T December 20,

tions just beyond 'the inner edges, of the wipers.

'These tackers are initially positionedconsiderably higher than theshoe, as shown in Fig. 4, to avoid interference withthe retarder members 8. "Each of the several tackers is constructedias It comprisesdan. arm l2 suspended at itsupper end on a flange member M which has .a horizontal curvature generally. similar to that'of the edge of the toe en'd ,of'the shoe bottom andis secured. to a vertically. mov able .supPorting:m mber.l6. i'By reason'of the manner in'which the arm I2 is thu supported itmay beswung inwardly and outwardly-in directions .transverse to. the edge. of the. shoe bottom. 'At its lower "end the arm LIZpcarries a nozzle member .l8 having therein a driver passage 20.

,inwhich iszmovable a tack "driver'22, this driver being shown in Fig. 7 as at the end ofits'tackdriving movement. Also formed in'the nozzle member l8,is a; passage zl-through which'tacks driver operating'member' '32; "This construction permits the several armS IZ-to-be swung inwardly and outwardly as above described-whilemaintaining an operative relation between the driver The member l6,

which corresponds tothe memberjZ H 'shownin Letters 'Patent No. 2,134,148, -is -moved down wardly at jt-he' proper-timeto position the tackers heightwise in 'proper relation to the shoe bottom by mechanism inc-luding a'lever 34 (Fig. '1), as

movement of the wipers. "'spond generally to the plates 233 shown in Let- 15,

fully disclosed in saidLetters Patent. ber 32, which corresponds to the member 268 shown in the last-mentioned Letters Patent, also is moved downwardly at the proper time to operate the tack drivers by spring means (not shown) controlled by mechanism including a lever 38,, .asalsofully disclosed in' said Letters Patent.

.The positions .of the several tackers 18 with respect to inward and outward swinging movements wise of the shoe in paths similar to the path of tersPatent'No. $134,148, but in theconstruction herein shown the nozzle members 83 of the tackerainstead of being positioned in slot in the plates, are engaged by the inner edges of the plates (Fig. 3) which are curved similarly to the wiping edges of the wipers. The nozzle members. are. held against these edges by springs 'dficonnected .to the arms 52 and tending to swing the .arms outwardly, one of these springs being shown in Fig. '7. The plates 33 are advanced bodily lengthwise of the shoe and are swung or. closed inwardly Widthwise of the shoe in time relation to. corresponding. movements of the wipers't-o cause the tackers' to be properly grouped. and positioned'relatively to the edges -of the wipers when the tacks are driven, the. tackers beingfmoved downward'to carry their.

nozzle members i8 .into engagement with th overwiped' margin of the upper just beyond the e inner edges of the wipers, as illustrated in Figs. 5 and '6. The tacker-controlling plate 38' are .detachably supported on carrier plates 42 (Fig. 3) which are mounted on a tablet? (seeral so Fig. '1) suspended on the lower ends of a plu-' rality of linksAB corresponding to the links 29! shown inletters Patent'No. .2, 134 ,18. These.

links by swinging movements permit theta'hle "44 and the tracker-controlling plates 33 thereon to'be advanced and retracted" lengthwise 'of] the shoe, and through mean-s controlling links the table is moved' downwardlyandjupwardly with the, tackers, so. that the platesf33' 'are" positioned at allitimes heightwise' in the .samerelation to: the tacker nozzles, as "fullyffdisclosed in "Letters. Patent "No." 2,134,148. The 'carrieriplates "62 are provided with cam slots "48 in which lie IO11S."53 supportedon the" table '44 to"guide"the carrier plate and'theirtacker controlling plates "38 in their closing and opening-movements.

Connected to the carrier platesare links- 52 and connectedto the-table Marelinksfifl, the links 52 and 54 correspondingrespectively to'the Links 293 and*29lshown' in the'last mentionedhetters Patent. It-will" be understood that through? these links the advancing and closing movements*are imparted to the tacker-controlling-plates 38 in proper; time' relation to the movements of the wipers. 'Each of the links-5 i througli' which "movements are imparted 'tothe table fil l is pivotally connected 'atitsrear'endto'a-sleeve 56 which is movable forwardly and 'rearwardly alonga guide member 58, as illustrated in Fig.

l, and each sleeve 55' is con'nected by a link-"V60 'to the lowerflend'portion of a leverfiz pivotally mounted at its upper end.*- It'will be understood that there aretwo of these levers associated respectively with *the't'wo link=connections 'to the table 44, these levers correspondingto the levers 296 shown in Letters Patent No. 2134148 and being j operated by "the" means therein fully? disclosed.

The mem are determined by tacker controlling ,p1ates38 which are moved lengthwise and width- These plates correing the tacks.

As hereinbefore explained, under some conditions viscous matter n the bottom of the shoe may adhere to the lower ends of the tack drivers 22 and be carried upwardly into the driver passages 20 when the drivers are retracted after driv- In order to prevent any accumulation of such foreign matter at the junction of any driver passage and the corresponding tackfeeding passage 2% from interfering with the proper feeding of tacks into the driver passage, the present invention, in its illustrative embodiment, provides means for imparting rapid reciprocatory movements in directions lengthwise of the shoe to the table 44 which supports the tacker-controlling plates 38 to shake the tackers when they are in their initial retracted positions. To permit such movements of the table, pin-andslot connections are provided between the links 60 and the levers 62, each of such connections comprising a pin fit extending from the lever into a slot 65 in the link. Each of the links 653, moreover, has a rearward extension 63 arranged to be engaged on its rear end by a finger it formed on a collar 72 which is fast on a rockshaft 74 corresponding in location to the rod 301 shown in Letters Patent No. 2,134,148. Also fast on the rockshaft M is a downwardly and rearwardly extending arm '56 the lower end of which is forked to embrace a block l8 supported on a pin 8!] (Fig. 2) which is eccentrically mounted on one end of a shaft 82 supported in a bracket 64 on the rear of the machine. One the other end of the shaft 82 is secured a friction disk 85 the periphery of which is engaged by the inner surface of a, pulley 88 through which the machine is operated, this pulley being driven continuously by a belt (not shown) from a suitable source of power. The shaft 82 may be driven, for example, at a speed of about 900 revolutions a minute, and accordingly the oscillating fingers l0, acting on the rear ends of the links 6Q, impart rapidly repeated forward movements to the table 44, the return movements of the table being effected by sprin s 88 connected to the sleeves 56. Such movements are imparted to the table only when the tackers are in their initial retracted positions, since the levers 7 32, in imparting advancing movement to the table in time relation to the corresponding movement of the wipers early in the cycle of operations of the machine, withdraw the rearward extensions 58 of the links to from the paths of oscillatory movement of the fingers 18, as illustrated in Fig. 1a. It will be understood, moreover, that when the table is retracted in response to return movements of the levers 62 later in the cycle, after the driving of the tacks, the rearward extensions of the links are again carried into the paths of movement of the fingers, as illustrated in Fig. l, to cause the desired shaking of the makers. Substantial insurance is thus afforded that any tack which by reason of the presence in a tacker of foreign matter such as hereinbefore described, or for some other reason, may have been caught and have failed to enter the driver passage will be dislodged to cause it to enter the passage. It is contemplated also that the shaking of the tackers willassist in dislodging therefrom any foreign matter which may be present therein.

While the invention is herein illustratively disclosed as applied to a machine which drives tacks, it will be understood that the invention is not limited to machines which drive fastenings of that particular character.

Having described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a machine for lasting the margin of an upper around an end of a shoe inwardly over the shoe bottom, a group of fastening-inserting devices arranged to insert fastenings around the end of the shoe bottom to fasten the upper in lasted position, said fastening-inserting devices having driver passages and drivers movable therein and having also other passages from which fastenings are fed into the driver passages, and automatic means for shaking said fasteninginserting devices to assist in avoiding failure of any fastenings to enter the driver passages.

2. In a machine for lasting the margin of an upper around an end of a shoe inwardly over the shoe bottom, a group of fastening-inserting devices arranged to insert fastenings around the end of the shoe bottom to fasten the upper in lasted position, said fasteningdnserting devices having driver passages and driver movable therein and having also other passages from which fastenings are fed into the driver passages, said devices being movable from initial positions into fastening-inserting positions, and automatic means for continuously shaking said devices when they are in their initial positions to assist in avoiding failure of any fastenings to enter the driver passages.

3. In a, machine for lasting the margin of an upper around an end of a shoe inwardly over the shoe bottom, a group of fastening-inserting devices arranged to insert fastenings around the end of the shoe bottom to fasten the upper in lasted position, said fastening-inserting devices having driver passages and drivers movable therein and having also other passages from which festenings are fed into the driver passages, said devices being movable from initial positions into fastening-inserting positions, and powerdriven means into operative relation to which. said devices are movable in returning to their initial positions for shaking them to assist in avoiding failure of any fastenings to enter the driver passages.

4. In a machine for lasting the margin of an upper around an end of a shoe inwardly over the shoe bottom, a group of fastening-inserting devices arranged to insert fastenings around the end of the shoe bottom to fasten the upper in lasted position, said fastening-inserting devices having driver passages and drivers movable therein and having also other passages from which fastenings are fed into the driver passages, means for moving said devices lengthwise of the shoe toward fastening-inserting positions and for thereafter retracting them, and continuously reciprocating means into operative relation to which said devices are movable when they are thus retracted for shaking them to assist in avoiding failure of any fastenings to enter the driver passages.

5. In a lasting machine having wipers movable lengthwise and laterally of a shoe to wipe the margin of the upper around an end of the shoe inwardly over the shoe bottom into lasted position, a group of fastening-inserting devices arranged to insert iastenings around the end of the shoe bottom to fasten the upper in lasted position, said fastening-inserting devices having driver passages and drivers movable'therein and having also other passages from which fastenings are fed into the driver passages, members movable in paths similar to the paths of the "wipers for ;controlling' :said :fastening-inserting devices and for positioning them relatively 1:01 the wipers prior to theinsertion ofrthe'fastenings, :=and :automaticmeans arranged to :act through said-members to shake said devices and thereby to assist in avoiding failure ofany fasten-ings to enter the driver passages.

' 6. In a lasting machine having wipers movable lengthwise and laterally of a shoe to wipe the margin of the upper around anend of the shoe inwardly over the shoe :bottom into lasted'posi- .t-ion,-.a group ofiastening-inserting devices arranged to insert fastenings around the-end of the shoe bottom to fastenthe'upper in lasted position, said fastening-inserting devices having driver passages anddriversrmovable therein and '.having also other passages from which fasten-' ings are fedintoithe driver passages, members -movable ,in paths ';simi1ar to'the paths of-the wipers for controlling said fastening-inserting --devices and-for positioning them relatively to the wipersprior-to the insertiona of the fastenings, means for thus moving :said members and f or thereafter retracting them, and power-driven means arranged to act through said members when they arein theirretracted positions to vshake said devices and-thereby toassist inlavoidingifailure of any fastenings to eriter thedriver passages;

7. In a lasting machinehav-ing wipers movable lengthwise and laterally of -a shoe to wipe the .margin of the upper'around an end of the shoe inwardly overthe shoe: bottom into lasted position, a group offastening-inserting devices arrangedto insert'fastenings around the end of the'shoe bottom to fasten the upper in lasted 1 position, saidf astening-inserting devices having idriverpassages'and drivers movabletherein and having also other passages from which fastenings areied; into ithecdriverlzpassages, .member's movable in paths -'similar1toithe';paths 'o'f"thewipers for :controlling .said fastening-inserting devices and for positioning them relatively to the wipers priorxto the. insertion :of the 'fastenings, mechanism movable to :operate said members andtreversely 'movablelto retract'them, and continuously reciprocating means intooperativerela V-ing'driver passages and drivers movable therein r and having also other passages from which fastenings are fed into the driver passages; meni- 'bersmovable in paths similar to the paths of 'thewipers for controllingsaid fastening-insert ing;devic-es -and'for positioning them relatively Ito-the: wiper's...prior to the" insertion of the fast-enings, mechanism including links connected to said membersfor advancing them lengthwiseflof the shoe and for thereafterretracting them, and reciprocating means arranged to act through said links only when themembers are-in'their retracted positions to-shjakesaid fastening-in- 1 serting devices and thereby to assist in avoiding failure of any iast'enings "toenter the driver "passages. 7

7 WILLIAM ":TI-IOMAS 'BUCKI NGHA M ROBERTS. 

